import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
import i18n from '@/lang'
import { loadingStart } from '@/utils/loading-service'

// 加载遮罩
var showLoadingLayer = null

// 创建axios实例
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 50000 // request timeout：ms
})

// request请求拦截器
service.interceptors.request.use(
  config => {
    // do something before request is sent

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['Authorization'] = `Bearer ${getToken()}`
    }

    // 是否显示加载遮罩
    if (config.showLoading) {
      showLoadingLayer = loadingStart(config)
    }

    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    return Promise.reject(error)
  }
)

// response 响应拦截器
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // 关闭遮罩
    showLoadingLayer != null && showLoadingLayer.close()

    // 异常处理
    if (!res.status) {
      if (res.code === 401 && getToken()) { // 登录状态过期
        MessageBox.confirm(res.message, i18n.t('common.warm_tips'), {
          confirmButtonText: i18n.t('login.re_login'),
          cancelButtonText: i18n.t('common.cancel'),
          type: 'warning'
        }).then(() => {
          store.dispatch('user/resetToken').then(() => {
            location.reload()
          })
        })
      } else {
        Message({
          message: res.message || 'Error',
          type: 'error',
          duration: 5 * 1000
        })
      }
      return Promise.reject(new Error(res.message || 'Error'))
    } else {
      return res
    }
  },
  error => {
    const res = error.response.data

    // 关闭遮罩
    showLoadingLayer != null && showLoadingLayer.close()
    // console.log(res) // for debug
    Message({
      message: res.message || error,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
